If you do kiteloops or high jumps you would like a board with better upwind ability.With a friend we did a test of these boards side by side.2012 cab custom 136 with bindings. Rocker 6.2 cm2013 north team series 137 with straps . Rocker 4.3cm2012-3 tona pop 138 with bindings. Rocker 5 cm

On the upwind side1 tona2 north3 cab

on the pop side1 tona2 cab3 north

My 2 cents, if you are not into wakestyle you can have a look on other boards.As example have a look on old underground styx or crypt or new axis vanguard or limited. Cabrinha x caliber is nice too and others similar boards.If you can search for 2012 brand new model you can have a good deal and go big with the board! 140 is too small for you. I'm 173cm x 62 kg and i use custom 136 or tona 138.